Color Identity: C

Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- You control at least three artifacts.
Steps
- Announce the activation of Chromatic Star's ability, allowing you to activate mana abilities while delaying any triggered abilities until this ability has finished resolving.
- Activate Mox Opal's mana ability by tapping it, adding one mana of any color.
- Activate Krark-Clan Ironworks three times by sacrificing Mox Opal, Myr Retriever, and Krark-Clan Ironworks, adding six colorless mana.
- Complete the activation of Chromatic Star by paying ({1} magic symbol)
, tapping it, and sacrificing it, adding one mana of any color. - When the artifacts go to the graveyard in steps 3 and 4, Myr Retriever triggers once, Scrap Trawler triggers four times, and Chromatic Star triggers once.
- Resolve Chromatic Star's triggered ability, drawing a card.
- Resolve Myr Retriever's triggered ability, returning Krark-Clan Ironworks from your graveyard to your hand.
- Resolve Scrap Trawler's triggered ability from Krark-Clan Ironworks, returning Myr Retriever from your graveyard to your hand.
- Resolve Scrap Trawler's triggered ability from Myr Retriever, returning Chromatic Star from your graveyard to your hand.
- Resolve Scrap Trawler's triggered ability from Chromatic Star, returning Mox Opal from your graveyard to your hand.
- The final Scrap Trawler triggered ability from Mox Opal fails to resolve due to lack of targets.
- Cast Krak-Clan Ironworks, Myr Retriver, Chromatic Star, and Mox Opal by paying seven mana.
- Repeat.
Notes
- The purpose the delay mentioned in step 1 is to wait until all relevant artifacts are in your graveyard before you have to select targets for triggered abilities.
Results
- Infinite card draw.
- Near-infinite ETB.
- Infinite draw triggers.
- Near-infinite storm count.
- Near-infinite LTB.
- Near-infinite sacrifice triggers.
- Near-infinite death triggers.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).